12/18/2024
When private veterinary practitioners collaborate with veterinary diagnostic labs, we answer relevant field-level questions that benefit animal owners, animal health, and support the One Health initiative (human - animal - environment).
Dr. Taylor Aubrey and I submitted diagnostic cat samples to the Iowa State University Veterinary Diagnostic Laboratory this spring during the H5N1 outbreak in cattle.
What did we learn?
1. There is risk to indoor cats for H5N1 infection (and death) when cats are living in households where someone works on an affected dairy farm.
2. If a veterinarian suspects H5N1 in a live cat, the samples that can help support getting a diagnosis include oropharyngeal swabs, nasal swabs, urine, whole blood, and serum. The oropharyngeal swab (deep swabbing of the mouth) is the most reliable of all the sample types.
3. If a cat appears rabid, and tests negative for rabies virus, the brain should then be tested for H5N1.
4. On deceased cats, the brain and the lung are the most helpful samples when H5N1 is on the rule out list.
A big thank you to Dr. Marta Mainenti, the veterinary diagnostic lab team, and Iowa State University College of Veterinary Medicine for your continued support of all of us working on farms and in veterinary practices.
In March 2024, highly pathogenic avian influenza A(H5N1) virus, clade 2.3.4.4b, was detected in dairy cows in the United States, and at the same time in residen...